On decision of the initial petition, the court must prepare and file a statement of decision specifying its order and explaining the factual and legal basis for its decision. The clerk of the court must serve a copy of the decision on the petitioner, the district attorney, the Attorney General, the clerk/executive officer of the Supreme Court, the clerk/executive officer of the Court of Appeal, and on any assisting entity or counsel.
Cal. R. Ct. 4.575